/Engine/Plugins/Runtime/Metasound/Source/MetasoundGraphCore/Public/MetasoundGraph.h
Populates an array with all nodes which exist in the graph but do not have any connections.
Number of unconnected nodes found.
int32 FindUnconnectedNodes ( [TArray](API\Runtime\Core\Containers\TArray)< TPair< [FGuid](API\Runtime\Core\Misc\FGuid), const [INode](API\Plugins\MetasoundGraphCore\INode) * >> & OutUnconnectedNodes ) const